Device for preventing collection of grease on rolls



Sept. 18,1928. 1,684,581

H. J. HARRIS DEVICE FOR PREVENTING COLLECTION OF GREASE ON ROLLS Filed Aug. 27, 1926 Arroezvsva.

Patented Sept. 18, 1928.

UNITED "'srA- res HENRY I. .I-IARRIS,'j or Younes row'n, onro.

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Application filedAugust 27; I926. Serial No. 131,930.

This invention relates "to a device which is adapted to remove grease from the shoulders of the rolls ofa rolling mill, it being objectionableto permit the grease to run d'ownthe shoulders of the roll andsubsequently engage between the working surfaces of the contactin'g rolls.

A further object of the invention is toprovide a device of this character'which is simple and inexpensive to manufacture and which may be attached to rolling'mills 'at present employed without the necessity of alteration.

It is necessarv to lubricate the journals of the rolls of rolling; mills in order to afford easy working conditions but it has been found that due to the heat of the rolls the grease or oil runs from the upper bearings down 7 and claimed.

Referring to the drawings:

Fig. 1 is a front elevational view of aroll ing mill SllOWlIlfI the pos tion of the device constituting my invention.

Fig. 2 is an end elevational view of the mill shown in Fig. 1.

Fig. 3 is a segmentary. view taken on line 33 of Fig. 2;

Fig. 4 is a cross-sectional view of the device taken on line 4-4. of Fig. 3.

In. the drawings, represents the standards of the ordinary rolling mill. The stand ards 10 have iournaled therein upper roll 11 and lower roll 12. the upper roll 11 being; provided with neck portions 13 and the lower roll'12 being provided with neck portions 14 The standards 10 are each provided. with a slot 15 and positioned within the slot 15 are upper bearing blocks 16 and lower bearing;

blocks 17 The bearing blocks 16 are adapted to receive the neck portions 13 of the roll 11 while the bearin blocks 17 are adapted to receive the neck portion 14 of the lower roll 12.

A slidable member 18 is positioned within the slot 15 and has upon its inner face a'bearingr block 19 which en pages with the neck portion 13 of the upper roll 11. This slidable member 18 is connected to a bolt 20 which is screw threaded lnto the upper portion of the standard lO and is adapted toadjust' the bearing 19'with respect to the neckportion 13 off'the.

uppe'r'roll "11 and thereby regulate the ten 3 vided with hub portions 22. It is customary the upper roll 11 to drive one of the lower hub members 22 and" i I the upper roll 11 is rotated by means of its contact with the driven roll 12. The rolling; mill so far described constitutes no part of the presentinvention and is the usual construction.employedin connection with rolling" mills. v

This customary .to keep the bearings well lubricated and in so doing the ereasefrom the upper bearing escapes onto the shoulders of theupper roll 11 and forces its way onto the working or contacting; surfaces of the rolls ll and 12, the presence of which affects the quality of the plates being rolledand which is thereforefquite objectionable.

The rotation of therolls 11 and 12 is com paratively slow and because of this fact the grease from the lower bearings 17 which se capes ontothe shoulders of the lower roll 12 does not reach the working; surface ofthe roll which s the case with respect to the upper bearings 16 and the rollll. I I In order to prevent this grease from fore ing its way between the contacting surfaces of rolls 1 1 and 12, I provide a devicewhich issecured to the standardslO and which has a portion engaging with the shoulders of the upper roll 11 below the neck 13. As the roll 11 rotates the grease which works its wav from the bearing 16 onto the shoulders of roll 11 is scraped off before the rolls 11 and 1.2 arrive at corresponding! contactingrpoints. the grease bein permitted to drop upon the lower hearing or maybe drawn off in any other suitable manner.

The device comprises a tubular portion 23 made of iron, or any other suitable material, which has a portion 2 1- bent over at substantially right angles to the tubular portion 23, the portion 24 being: provided with an opening 25. This portion 24 is bent at such an anirle that it engages the flat end of'the standard 10 and extends in a declineclmann'er. A slidable member 26 composed of a piece of strap iron bent into substantially a U-shape.

has a leg portion 27 and a leg portion28, the i leg portion 27 being slidable withinthe tubu lar portion 23. The leg portion 28 extends substantially beyond the end of the tubular member 23 and has secured at itsend a scraper der of the upper roll 11. should be bent at an angle with respect to the 29 which is adapted to engage with the shoul The scraper 29 upper roll 1.1.50 that the grease which is scraped from the shoulder of roll 11 may be directed downwardly and away from the working surfaces of said rolls.

In order to maintain this scraper 29 in en gagement with the shoulders'of the roll 11 a spring 30 is provided which has one end secured to the portion 24 of the tubularzmember 23 and the opposite end secured to the end of the slidable member 26. It will be noted that any irregularity in the shoulders of the roll" 11 will have no'efiect upon the scraper '29 as the scraper will be held in contact therewith due to the tension of the spring ,30.

Inapplying the device to the mill it is only necessary to drill and tap a hole 31 in the end in Fig. 1, is adapted to extend within the slot I vice attached in a certain manner and loca of the standard 10 and to. secure the scraping device thereto by means of a bolt 32 passing through the opening 25 in the portion 24 of the tubular member 23. The device, as shown 15 of thestandard 10. V

While I have shown and described thedetion, it is to be understood that various changes may be resorted to without departset to be securedto a part 0 ing into engagement with the shoulder of a roll. 3. A device for preventing grease from contacting with the working surfaces of rolls of rolling mills comprisin a member adapted the mill, a second member slidably engagingthe first member and provided with an extension adapted to engage the shoulder of a roll, and means for causing engagement between the last mentioned member and said roll. I a p 4. A device for preventing grease from contacting with the working surfaces of rolls of rolling mills com rising a member adapted to be secured to a m1ll, a secondmember slid able within the first member, said second member being provided at its end with means for engagement with the shoulder of a roll, and resilient means at the opposite end to cause engagement therebetween. p r

5. A device for removing grease from rolls of rolling mills comprising a member adapted to be secured to the mill adjacent the endof the rolls, said member being provided witha longitudinally extending slot, a second member slidably mounted in said slot and having an end extending to substantially the end of the roll, a scraping means secured to-the extending end and adapted for engagement with the end of the roll, and a spring having one end secured to the first mentioned member and the opposite end secured to the slidable member, said spring adapted to cause engagement between the scraping means and the end of the roll. I

6; In a rolling mill, the combination with a pair of standards and rolls journaled there.

in, of a means secured to said standard and extending into engagement w th the shoulder of said roll to remove grease therefrom and thereby prevent said grease from reaching the working surface of saidrolls.

In testimony whereof, I hereunto aflix my signature.

HENRY J; HARRIS. 

